Ceiling-block



(No Mordel.) H. T. PAISTE.

CEILING BLOCK.

No. 442,451. Patented 1390.19, 1890.

nii!! IINTTim STATES PATENT OFFICE.

HARRY T. PAISE, 0F 'EST CHESTER, PFNSYIANIA.

CEILING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 442,451, dated December 9, 1890.

Application filed October 14,1889. Serial No. 326,919. (No model.)

To a/ZZ whom t may concer/L.-

Be it known that I, HARRY T. IAISTE, a citizen ot' the United States, and a resident of Test Chester, Chester county, Pennsylvania, have invented certain Improvements in Pendent CutOuts for Electricdiight Circuits, of which the following is a specification.

The object of my invention is to so construct a pendentcut-out for electric-light circuits that the circuit plates and connections are mounted on a disk of noneonducting material, while the base and the cap can be readily made of porcelain or similar material and the disk can be secured to the base and cap after the wires and plates are adjusted.

In the accompanying drawings, Figure l is a face view of my improved pendent eut-out. Fig. 2 is a section on the line l 2, Fig. 3. Fig. 3 is a sect-ion on the line 3 4C, Fig. l. Fig. 4 is a perspective View of the base-plate detached. Fig. 5 is a perspective view of the disk detached, and Fig. G is a view of the cap detached.

A is the base, preferably made of porcelain or glass, and in this base is formed a transverse groove c. Adapted to this groove are two plates B B', the plate B being secured to the disk by means of a screw b and the plate B' by a screw D', the screws being insorted from the rear of the base A, so that a screwethread need not be cut upon the base. The base is hollowed out, as shown in Fig. 0n the plate B is a binding-post c, which receives one terminal of a wire, while c is a bindingpost on the plate B', receiving another terminal. The base A has counters u nk orices a', through which pass the holding screw by which it is retained. The plate B extends to the center of the base A and has a screw-threaded orifice d, in which is tapped the retainingscrew D, which passes through the disk E of non-eonducting material and retains it in a certain position in respect to the base A and its plates B 3.

The disk E can be made ont of any suitable non-con ducting material, but I prefer to make it out of hard rubber or liber.

On the disk are the plates F I1", which are secured. to the disk by means of screws ff. On these plates are the binding-screws g and g for the terminals a and x', and bindingscrews z and 7L for the fuse-wires Il Il. The

fuse-wires are connected to binding-posts i z on plates I l', which are secured to the disk by screws 2, Fig. These screws also pass through spring contact-plates .I .I and retain them in position, so that when the disk is se cured to the base A the spring contact-arms bear upon the terminal plates B B.

The cap M is secured to the disk bya screw m, which passes through an orifice n in the cap and screws into an orifice a in the disk E. The wires pass through an opening p in the disk to the lamp. `rlhus if a currentexeeeding that to which the fuse-wires Il H are set it will burn out the fusewires and cut the lamp out of circuit.

By the peculiar construction of the cut-out, the casing can be made of porcelain or glass, and, if necessary, highly ornamental, and will not be distigured by a number of screw-heads, as is the case with eut-outs of the ordinary construction, where porcelain or glass caps are used.

The central screw D is the only fastening by which the cap and disk are secured to the base. By turning the cap and disk the screw can be readily disengaged from. the plate B and the cap and disk removed for repairs or for examination when necessary. The plate B may extend to the middle and have ascrewthreaded oriiice instead of the plate B. or a separate screw-plate may be used, and the peculiar construction of the plates F and I need not be adhered to, as they form no partof my invention.

In aseparate application filed by me on the 26th day of February, 1890, .Serial No. illjfll, I have shown the terminals of the base and cut-out disk held in conta-ct by the pressure of the inclosingcap. Hen ce I do not claim in this aplilication such construction; but

I claim and desire to secure by Letters Iatentl. rthe combination, in an electric cut-out, oi the base, terminals thereon,a disk of nonconducling material carrying the cut -out mechanism and secured to the base by a con.- iining-screw, contact-plates on said disk, and a cap secured to the disk and adapted to cover the same and its mechanism, substantially as described.

2. The combination of the porcelain base ICO A, contact-plates secured thereto, with@ porcelain cap, non-conducting disk secured therein, cut-out mechanism carried by said disk, contact-plates on the disk adapted to rest upon lthe contact-plates on the base, and a conining-screw for securing the disk tothe base, substantially as described.

3. The combination of the base A, terminal plates B B secured thereto, e disk ot' non-conducting material, cut-out mechanism thereon, the spring-plates J J, adapted to beur upon the plates B B', sztid plate B having an extension with screw-threaded orifice therein, and a retaining-screw D, adapted to said oriiee, whereby the disk is secured to the plate, substan tially as described. 

